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EXPLANATION OF PLATE 37 

 Figure Page 



251. Terebra dislocata Say 177 



252. Terebra concava ^inosa Dall 177 



253. Terebra protexta (Conrad) 177 



254. Conns spurins atlanticas Clench 178 



255. Conns floridanns Gabb 179 



256. Conns st^arnsi Conrad 180 



257. Conns jaspidens Gmelin 180 



258. Conns perryae Clench 178 



Fig. a. Apertural view. Fig. b. Rear view. 



